Map of ferry routes to North Sea spas on the German coast including Helgoland, Borkum, Juist, Nordeney, Amrum, Sylt, and others, labeled 'our North Sea spas'. The reverse is numbered (bottom left) 15293.
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Label: 'our North Sea spas', and island names including Helgoland, Borkum, Juist, Nordeney, Amrum, and Sylt.
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